Q1. Determine the average force needed to change the velocity of 22,000kg bus from rost to 13.6m/s in 10.5s.

Which best represents the law of conservation of mass ?

How do you tell if someone actually cares about you? and just say they do?

30 points - when can a theory be modified if a new type of technology allows for new observations that raise new questions? a. immediately, while the questions about the theory are being asked b. after new hypotheses related to the theory are tested in experiments c. only after the new observations disprove all parts of the theory d. while scientists begin to think about how the theory could improve